Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
000018goodexcellent31excellent
230017goodexcellent31excellent
220016goodexcellent31excellent
210019goodexcellent41excellent
200019goodexcellent41excellent
190020goodexcellent41excellent
180016goodexcellent31excellent
170010excellentexcellent21excellent
160011excellentexcellent21excellent
15009excellentexcellent11excellent
140010excellentexcellent21excellent
130010excellentexcellent21excellent
120012excellentexcellent21excellent
110023goodexcellent41excellent
100030goodexcellent41excellent
090035goodexcellent41excellent
080034goodexcellent51excellent
070041lightly pollutedexcellent51excellent
060046lightly pollutedexcellent41excellent
050049lightly pollutedexcellent51excellent
040055lightly pollutedexcellent41excellent
030054lightly pollutedexcellent71excellent
020068moderately pollutedexcellent101excellent
010060lightly pollutedexcellent81excellent